| Ref. code: | Nd.01-02-23-02 |
| Ref. code AP: | Nd.01-02-23-02 |
| Creation date(s): | 2/17/1925 |
| Title: | Wilhelm Allabor, in Herisau, Elektrische Weichenverriegelungs-Einrichtung, Patentnummer CH114408 |
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URL for this unit of description |
| URL: | https://query-staatsarchiv.ar.ch/detail.aspx?ID=360467 |
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